A fast-food franchise, looking to reduce wait times for customers, launched a pilot program in whichcustomers could use a smartphone app to place orders. The accompanying data set shows the mean wait times, in seconds,for in-store and drive-through customers at10

stores participating in the pilot program and at10

stores not in the program. Assume that the population variance of mean wait times is equal for both groups of storesand that the mean wait times are normally distributed for both groups of stores. Let the mean wait times ofthe stores not in the program be the first sample, and let the mean wait times of the stores in the program be the second sample. At the0.05

level of significance, is there evidence that the smartphone app reduces wait times? Perform the test using a TI-83, TI-83 Plus, or TI-84 calculator. Find the test statistic, rounded to two decimal places, and the p-value, rounded to three decimal places.

T=

P-value =